<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<script>
    // var num = prompt('请输入班级人数：');
    // var sum = 0 ;
    // var average = 0;
    // for(var i=1;i<=num;i++){
    //     var num1 = prompt('请输入成绩')
    //     sum = sum + parseFloat(num1);
    // }
    //  average = sum / num;
    // console.log(sum);
    // console.log(average);
    var str='';
    for(var i =1;i<=100;i++){
        str = str + '草'
    }
    console.log(str);
</script>
<body>
    
</body>
</html>